Are blue lenses in sunglasses bad for your eyes?

Unless you are an eye specialist, there's nothing "dumb" about the question posed could the blue tint be harmful to your eyes. Certain tints do allow more light (UV Rays) through the lens. The tint itself would not cause harm but over time some tints allowing more light would give less protection. Persol is well known for the quality of its "glass (crystal)" optics as well as their frames. For protection, the green (G-15) tint would give better protection simply because the tint is darker.

Does the frame fold fully? have noticed other persol po3048 having trouble folding the temple sticks in.

I've had my pair of Persol PO3019S for three weeks. Beautiful looking sunglasses, but they're already having issues folding properly. It takes more force than it should to fold them shut. It's only a matter of time before they break.

What is the total frame width of these glasses (from one end to the other)?

Each pair of glasses will have the 3 number code on their dimensions. It is not on the pair but listed when the glasses are displayed such as 47 or 52 for example.

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Persol Unisex Po3019s Square Sunglasses

Product ID: 15467108

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Description

PO3019S captures the essential values of the brand's collections over time. Thanks to the elegant arrow and Maflecto system, the model combines extreme functionality with impeccable elegance.

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